The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 31, 2006
Filed:
May. 18, 2005
Osamu Kagaya, Tokyo, JP;
Noriko Sasada, Yokohama, JP;
Kazuhiko Naoe, Yokohama, JP;
Opnext Japan, Inc., Yokohama, JP;
Abstract
Even for a driving impedance of 25 Ω, high transmission waveform quality of an optical transmission module is maintained using an optical modulator element designed for a driving impedance of 50 Ω. The above can be achieved by adopting an optical modulethat includes an input electrode for electrical signals, an optical modulator element for modulating laser light using the electrical signals, a termination resistance element, a first bonding wire for connecting the input electrode and the optical modulator element, a second bonding wire for connecting the optical modulator element and the termination resistance element, and a third bonding wire for connecting the input electrode and the termination resistance element.